Repeating graphophone.



c.- CAMERON; n. l nfria'fmsGnAPHoPHonE. v Amlcmou mzufmomz's. ma. l y A1,142,670. Patented June aff-'1915,'

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To IZZ whom it may/concern? Be it known that I, Comit CAMERON', Jr., Vacitizen of the UnitedStates, residing at* Tucson,v Pima ,county,Arizona, have infven'ted certain new 'and 'useful Improvei. ments' inRepeating Graphophones'; and I t do herebydeclnre thefolloiving to be af ull," y c leemd exact 'description of the invention,

such asw'ill enable others `skilled in the art 1 0 to which it`enpertninsto make and usegthe same, reference being had" to the Vaccomfpenying. drawings', and tf1-letters or figures of reference markedthereon, which form :il part ofrthis specification,

l5 `My invention relates to grphophones,

m'o're particularly to repeating graphe- "'\pho nes ,"'a'nd has forvitsobject to' proyide simple ind efiicient mechanism whereby the'production on the disk, Whether music,

song or speech, will be autoinitically.v repeated, the Vnumber ofrepeatsbeingsiinply dependent `upon the length `of time that 'the\usual motorof the graphophonef'fvill operate. i

a plan'view of a graphophone provided with a. repeatinrirmechzinismembodying' my ini- 'ention.Y FigiV 2 is a. sideelevationthereof.' 30. Fig. 3 isn detail ofecain'for tripping the holding pawh.Fig. 4 is l plan View 'of a' modification showing the tripping cem asmounted on the horn-supporting bracket.

Fig'. v5is an enlarged elevation of e portion .'35 of Fig. 4. Fig. (Sisa fui-ther modifica-` tion, and Fig. 7 shows themethod of zit-`tchingthe modification -the postor spindle.

The invention is shown epplied'to a Well- 40 known form of giaphophone,or disk talkshoWn in Fig. 6 to tomary disk 6l. 'lhesound box 5` ismounted on n U-shaped tube 6, 'said tube@y being journaled incrmountedto 'rotnte the K 'Y 290 end ci' the soundfernif'T The iii-shaped tube ois i1-Sigi nemend of the arm 7 by a retiningwesher `8wheldi'nj place by.'a screw! 9, Asind `the soundarm 7 'is moii'nted on pixotjpointl() in' asup- 5'5 porting bracket' 1l attached tothe side 0'.

Referring to thedrawingsin which lilge" parts 'are similarly designated,Figure 1 is" f Speciicetoii olfiettersfletent. i 'i PatentdfJ 8,1915.Appnqaiion'niei november 25,1191'3i Serainesozeo. y i .Y theY ca sefvorThe sound arm rcoinvmuniceites With the f'siial horngll. f lThe parts)ust described are theparts of existing machines end ere7wellknown in .lthe nrt, and' require no ffurtherdescription.

order tomeke such ena'ppsiratus autoni'ziticnfllyl repeat, it isnecesseryfirst to lift `fthe sound bozgso` ns to; remove the'ineedlefrom the record, nndtliis Ido'1by" means 'automatically coming into'af'ction'to"frotate the'sou'nd' bcX 5 `and the Uetube 6 in the end ofthe soundv lfirm 7', Aand 'I 'iilso yprovide means for holding theneedle lifted- This prevents the-needle from being drgged 'ytransversely of the .conyolutions of the phonc'line of the'disk 4. "Thesound box ,must beheld so elevated'untilit has passed zicross therecord, and must then be released Yet or'neer the 'beginning of thevphonic line.

In order to lift the needle from the record the phonic line iscontinued, as shown at "13, Fig'. 1', in a spiral of greater' cryeture"or pitch than the lusual'talking"portion of the phonic lineindie-continued onto n n incline or lug"14,' so that the needle at theend of the playing of the piece, will follow the lin'e 13 and ride uponto the lug erprojection 14,' andin so doing liftthe sound bex 'andcause the Uftube 6 to rotate slightly,

'and with `it `thewa'sher or disk 8;'

- The'wesher 8 ispr'ovided with a5 lug or "notch 15 constructed te beengaged by .the

nose of Aa` paWl L16'pivote d at 17 on the f `sound arm. The tail'of'-this pawl. 16 is longer'A than its nose, `and 'operates as a Weight tourge thenoseof thepawlagemst notch 15.

As soon as'the sound boi; has been lifted 'the edge of the Washer Q8 endinto the lifted. The delicately `pivoted'soundarm Withoutharm to the`record.`

moi/ement l, attach to .the sound erm 7 a bracket 18, end also' attachto the horn supmailed l'spring This'spring the is then free vto be swungits pivo'tvl()A L the needle will engage the initial portion of thephonic line.

.pressure of spring 27. H

fsoajtnat sound arm 7, together with the sound box `held elevated bypawl 16, toward the periphery or starting portion of thephonic line. Itnow becomes necessary to stop the swing of the arm 7 and to releaselthevpawl from its notch 15, to allowl the' sound box to drop and placethe needle in positional'. or near the beginning of the record.

On the case 1 Ilmount a bracket 21' having an uprightportion 22 providedwith va perforation '23l through which-,projects a cam 24 having adepending arm 25` "through whichpassesa screw 26, screwed into theupright portion 22 of the bracket. A light spring -27 surrounds screw 26between the portion 22 of the bracket and'arm 25 of "the cam. Thisstructure of cam'is slightly yieldpressure of spring 27, and, viceversa,when, v

unscrewed` the portion 22 Will decrease The tail of the pawl 16 rides.on t, i11- c'lined surface of the cam 24, and in ding'so the tail ofthe pawl is cammed'upward whereby its nose is released from vits notch15, and the sound box drops down,so that In'order to preventthe sound;Aatan from swinging too far toward the peril'ihery'of the disk and beyondthe sourd record thereon, and to insure the sound box being released atthe proper' point, Ivi'vide a stop 30, against which the side of thetailvof the pawl 16 willstrike. Should the sound arm y .and pawl beswung over against a rigid stop 30 a rebound may occur, and this reboundwill prevent the sound box from dropping at the proper point, and it is.for this rea- Tprovide a yielding cam 24e, so. that t Vift- 1.0i thepaw] strikes .the cam yield to a certain extent, suiiicient to'-prevent, the rebound of the sound arm, )thereby cushioning-the sound armas it 'moves against the absolute o r rigid stop 30,

andv atthesametime the cam 24 will lift the tail ofthe pa'wl.` Properadjustment of ythe stop 3 0 andthe tension of spring 27 can readily'bedone after a few trialsl. As soon as the'needle'has dropped into thebeginning of the phonidline the piece is re-played, untilthe needlerides upon the .lug or prcjection 14 on the record. vFor double-facedrecords there is a projection 14 on each side `thereof, audit isselfLevildent that it is neces-- sary to vprovide'arre'cess in thetable2 for the fiat on the tableff` In the modication shownfin Fig. 4,the

tail of the pawllis extended all alng the sound arm'7, as vshown' at 16,and is pro' vided with af setscrew 31 arranged to ride on a cam surface32 made integral with or secured to the horn supporting'bracket 11. Thecam 32 has but a slight rise, and by reasn"`o`f` this it is not providedtgv/ith a yielding surface.` `The bottoni .nflth'e arm carries adependinglug 33, in which is a setscrew 34 that takes against thesquared end of the cam 32, to provide'an absolute limit for the swing ofarmy 7 and to prevent said arm -from swingingy past the initial turn ofthephonic line. The spring for returning the sound arm 7 to initialposition, in this construction is Wound around the pivot pin 1 0 f-orthe arm, one end of the spring,fhere 'shown as the lower end, beingsecured in the brkcket 11, and the other end to a Washer ll; or it maybe that the upper -end of spring 20I is' secured to the sou-nd arm inany convenient manner. I have found, however, thatthe weight of `thesound arm Aon the washer 10a is sufficient to cause the sound larm totravel back to its initial position;

In Fig. 6 I have shown an attachment for tripping the sound box, whichconsists of simply slotting the top of the spindle 3 at 35, anddrillix'ig'aholey transversely to the slot at 36. I then provide acap'piece- 37 having a rib 38 arranged tolente'rv the slot 35, saidflange 38 having a h0lev3 9. in' regis ter with the slot136. TheIcapjpiec'e 1s also provided vvitha square hole 40 forthe reception ofarod- 11 held in placein the cap piece by a set-screw 42. The rod41 isbent 'so that its freeerifd liesclose to the're'cord.

The rod is perfectly-square, or is-'provided with a v beveled `surfacehaving-"approximately the'y same incline'v .as the needle,` so thatwhen" this rod rides underv thelneedle it will lift the sound lbox-inthfe samelmanner. that the projection lfl'lifts lit.l vAny other rmannerof securing the trippin rod 41 to the spindle may be used,v it simply"other tripbeing essential that the rod o ping device travels withthejspil or table, that is to say` the tripping mea" avels undertheneedle and in sojdoing." vits it.'

Of course the springs 20- a'nd20a vproduce av slight lateraly pressureof the needle point against the sides of the record groove. This,

apparently-would be objectionable, but the sound arms of graphephonesfvare very deli.

catelypivoted andthespringQO is made of very fine wire, sothat thislateral pressure is immaterial` and I have found that the records willWear just as well as those on which the repeating device is ynot used.

It Will be noted that I have illustrated my invention in connection witha machine havpivot,`a sound box on said arm,.a needle'in the sound box,anda rotatable record enf gaged. by and coperating with .theneedle toswing said arm on its pivot, of means to lift the needle and thereby thesound box from the record at the end of the reproduction, means on` the:sound arm to maintain the sound box lifted, means to return thesound-'arm and sound box to initial position',

vand means to release the'sound box. y Y 2. In. a graphophone, thecombination with a sound arm movable about a vertical pivot, a sound boxon said arm,a needle in the sound box, and a rotatable record engaged byand coperating with the needle to swing said' arm on its pivot, of meansmoving With and at a speed equal to the speed of the record tol lift theneedle and thereby the soundbox from the record lat the end of thereproduction, means on the sound arm to maintain the box lifted, meansto automatically swing the sound arm andsound vbox to initial position,and means to automatically 'release the sound box 5to cause the needleto again engage the record., In a graphophone, the combination with thesound arm, the sound box jourj naled thereonand the record supportingtable; of means. movable with the tableyto trip Vthe sound box, means onvthe` sound arm to hold the sound box tripped, means to.

automatically swing the arm across `the record, means in the pathof thesound box holding means to release the holding means and means to adjustthe time when said holding means is released.

4. In a graphophone, the combinationA j with the sound arm thereof,thesound box journaled thereon and the record support;

'of means movable with the record support to trip the sound box, meanson thevsound arm toyholdfthelsound b'ox tripped, a spring toautomatically swing the arm across the record and a cam to trip theholding means. v5. In a graphophone, the combination vil/,ith the soundarm, the sound box jour- Yii'aled thereon, its needle and the disk sup-'porting means; of a disk on the latter having a projection onto whichthe phonic line *of the diskis continued, by which the sound Abox'israised when its needle rides over the same, a paWl to hold the/sound boxin its arm, a pavvl to hold said box in raised posi-` tion, a spring toreturn the arm to initial posltin, an adjustable yielding cam forsimultaneously tripping said. pawl and retarding or damping' the swingof the arm near the limit of its swinging movement, and an adjustablestop for limiting the swing of the arm. I

V1.7.' In l` combination, a phonographic record, a-sound arm,A a soundbox journaled thereon, a needlain the box, said record having aprojection onto which the phonic line is extended rsaid projectionadapted to be engaged by the needle to trip the sound box, `means`carried by thearm to hold the box v,tripped after the needle has passedsaid projection andl means to return the arm to initial position. i

y 8. In combination, a phonograph record, a sound arm, a sound boxjournaled thereon, a needle in the box, said record having an inclineprojecting from its face onto which they pnonic line is extended .atgreater pitch and adapted to beengagedby 'the needle to tripthe soundbox, means to .hold the latter tripped after the needle has passed saidprojection, means to return the sound arm to initial position, and meansto release the sound box at starting position. 9. In combination, aphonograph record, afsound arm, a sound box journaled thereon, aL'needle in the box, said record havingv an incline projecting from itsface ontov/hich the phonic line is extended at greater pitch and adaptedto be engaged by the needle to trip the sound box, means to hold thelatterv initial position, an adjustable bracket, and i ayielding stopmounted in the bracket for raising the holding means forthe sound box.

In testimony that -I claim the foregoing as my invention, I have signedmy name in 1 presence of two subscribing Witnesses.

j QOLIN CAMERON, JR. Witnesses:

l. F. MCGILL, HENRY MILLER.

